From: Michael Snyder <msnyder@vmware.com>
Date: Sat, 18 Aug 2007 20:05:48 +0000 (+0000)
Subject: 2007-08-18  Michael Snyder  <msnyder@access-company.com>
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=32107cd542eff63c06004408434cf337597fb2f1;p=binutils-gdb.git

2007-08-18  Michael Snyder  <msnyder@access-company.com>

	* event-loop.c (delete_async_signal_handler): Move pointer null
	test to before pointer dereference.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9c3b1118a47..4ae9c5f7a2b 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,8 @@
 2007-08-18  Michael Snyder  <msnyder@svkmacdonelllnx>
 
+	* event-loop.c (delete_async_signal_handler): Move pointer null
+	test to before pointer dereference.
+
 	* ui-out.c (append_header_to_list): Possible cut and paste error.
 
 	* MAINTAINERS: white space tweak.
diff --git a/gdb/event-loop.c b/gdb/event-loop.c
index e28de9a39d9..c946ce48cc4 100644
--- a/gdb/event-loop.c
+++ b/gdb/event-loop.c
@@ -950,7 +950,7 @@ delete_async_signal_handler (async_signal_handler ** async_handler_ptr)
   else
     {
       prev_ptr = sighandler_list.first_handler;
-      while (prev_ptr->next_handler != (*async_handler_ptr) && prev_ptr)
+      while (prev_ptr && prev_ptr->next_handler != (*async_handler_ptr))
 	prev_ptr = prev_ptr->next_handler;
       prev_ptr->next_handler = (*async_handler_ptr)->next_handler;
       if (sighandler_list.last_handler == (*async_handler_ptr))